Combination work and power stand



M. H. FULLER COMBINATION WORK AND POWER STAND M. H. FULLE@ COMBNATIONWORK AND POWER STAND Aug. 7? LLESZ M.H.FULLER COMBINATION WORK AND POWERSTAND Filed Feb. 2l. 1921 4 Shees-Shee 5 Aug 7 ma i I M. H. FULLERCOMBINATION WORK AND POWER STAND Filed Feb. 2l 1921 4 Sizeeats-Sheat 4lll) lli

Patented 7; lllgit JIRRS E. FULLER, 0F CHZICGO, ILLINOS, ASSGNR TOSERVCE STATN .QUP-

COMPANY, UF CHCAGO, EELLINOXS, A CRPGRA'IPXON DE XLLINIKS.

COMBINATXON 'WOEK AND PFVER STAND.

Application filed February 21, i921.

To all whom it mary concern:

Be it known that l, Monnrs H. FULLER, a citizen ot' the United States,residing at Chicago, in the county of Cook and State of lllinois, haveinvented certain new and useful improvements in Combination `ill/vorkand. Power Stands., of which the following is a specification. l

This invention relates to that class oin machine-shop appliances whoseusefulness more particular-lv pertains to the requirement of anestablishment such as the modern automobile service station in thehandling of detached complete motors and what are commonly called engineblocks7 and the invention has especially to do with the matter ofholding an object of that character while' work is being done upon it byway of Arebuilding or repair, and in conjunction therewith the holdingof such engine block during the performance of the process of burning-inthe bearings for the crank shaft; as also holding a complete motorduring socalled running-incr limbering. It is man1- fest that the moreextended and more varied is the range of usefulness of a singleappliance or combination of appliances, the more desirable from thestandpoint of `the, user and in this regard l state the leading objectof my invention to be the supplying of a complete outfit comprising'asturdy work stand designed to convemently and firmly hold engine blocksof varying types and sizes with capacity for easily edecting changes inposition to suit different kinds of operations that may be called for,in the way of rebuilding or repair, and comprising also a power head orstand through which to drive the crank shaft for burning-in, running-inand limbering purposes; the work stand being portable so that it can beused at any location desired while the power stand is permanentlyplanted at an appro-I priate place for receivinnr and transmitting powerand has fxedly associated with it a base structure adapted to receiveand sustain the portable work stand with the engine crank shaft inproper alignment with a drive shaft of the power stand as effected byfacile adjusting equipment carried by the work stand whose portabilityor movability as a unit provides for readily putting such alivned crankshaft into rotative engagemeiit with the power shaft. l

Serial No. 446,769.

My invention consists primarily in a combination of the character justin icated; enibracing instrumentalities for rigidly holding an engineblock or a complete motor in the work stand when adjusted or set at theburning-in or running-in position and for securely anchoring the workstand te the permanent base structure9 and may also be said to consistin various subsidiary devices and combinations enhancing the service-/ability of the work stand as such and likewise that of the power stand;all as set ont in their essentials by the appended claims,- an exampleof a comprehensive form of mechanical means for embodying the inventionbeing precedently described in detail and. being illustrated in full bythe acrompanying drawings which form part of this specification.

0f said drawings Fig. l represents a complete outit in perspective witha typical engine block set for a burning-in operation; Fig. 2 representsthe power head in perspective together with the ianged end of the enginecrank shaft and a dotted line illustration of part of the engine block,these latter parts being represented as spaced away from the power headfor the purposes of the illustration; Fig. 3 shows the major portion ofthe outfit in side elevation; Fig. d shows it in vertical cross-sectionlooking toward the power stand with one of the work stand columns oruprights broken away and some further sectional illustrations, the mainsection being taken substantially on the line lr-4f of Fig. 3; Fig. 5

lshows a vertical cross-section of the central portion of the work standon the line 5--5 of Fig. 3; Fig. 6 shows one of the enginesupporting.angle bars in perspective; Fig. 7 shows one of the engine-attachingplates used in connection therewith; Fig. 8 is a fragmentary section ofthe work stand with a portion of the base structure below, see line 8,Fig. 3.

Referring first to Fig. l, the numeral 2 designates side channel bars ofthe base of the work stand to the upper sides of which are rivetedtransverse Z-bars 3 of which there are two pairs spaced apart and withthe members of each pair spaced from each other so as to providetransverse ways along purposes of adjustment.

column'has a foot ange 4 resting upon the top surfaces of confrontingupper flanges of the Z-bars, clam plates 5 being put under those flanges4an bolts 5 being run .through the base. of the column and screwing intothe said clamp plates. (Fig. 3.) There are four of these uprights orcolumns and vtheir adjustment'crosswise the base of .the stand providesfor accommodating engine blocks of differin widths. Each of thesecolumns is hollow t roughout the greater portion of its height and facedon the lnner side so as to proviie a vertical way for a nut slide 6(Fig. 4), which is flanged to nt against the `inner side of the columnand has formed as an integral part of it an outwardly projecting longIbolt 6 and an nwardlyprojecting short bolt 6b. The long bolt extendsthrough the open center of the column castln and receives on itsthreaded end a nut between which and the outer side of the column isinterposed a washer 8, this' arrangement providing for the clamping ofthe nut to the columnat any posltion of vertical adjustment. through ahole in a substantial side bar 9 and receives a nut 10 for clampin thatside bar to the nut slide 6. There exten s through the tapped verticalhole of the latter a long screw 11 which runs up loosely through anoverhanging boss 4 at the top of the column and is surmounted by ahandle-equipped wheel 12 by which the screw is turned to raise and lowerthe nut slide. The construction is the same for each of the four columnsand the two columns at one side support between them the side bar 9 atthat side of the stand while the two columns at the other side similarlysupport the other side bar 9. These side vbars constitute the mainhorizontal sustaining members and it is obvious that they may be raisedand lowered along the inner sides of the columns for the purpose ofsetting an engine block or motor at the proper elevation, assumin ofcourse that the nuts 7 are loosened. T e weight of 'the hars andattached parts and that of the engine block or motor will then beimposed upon the screws 11 and suspended from the overhangingbosses 4 ofthe columns. The hubs of the wheels 12 are suitably faced for theirbearing upon the tops of said bosses and it will be obvious that theturning of said wheels in one direction will cause the screws to liftthe Side bars 9 whereas the turning of said Wheels in the oppositedirec- The short bolt extends columns and relieving the screws of theweight of the side bars and attached parts and the work.

p Adjacent the inner side of each of the said bars 9 there is a channelbar 14 and these channel bars have central pivotal connection with thebars 9 as best shown 'in Fig. 5. This is for the purpose of roviding atilting holder for the engine lock so that it .may be variouslypositioned to facilitate work that is being done upon it when theportable stand is bein usedpas such away from the power stan When servinin conjunction with the power stand the ti ting capacity of the workholder does not come into play. For such operations as burningin,running-in and limbering the engine block or the engine assembly mustmaintain a horizontal position. Therefore provision is made for boltingthe ends of the an le bars 14 to the ends of the side bars 9. he numeral15 (Figs. l and 3) designates bolts run through re ristering holes inthese parts and the numera 16 designates clamping nuts on these bolts, sacing washers being interosed between t e angle bars and the side ars.

Reverting now to the matter of the pivotal mounting of the angle bars,there is riveted against the outer'side of one of these supporting bars9 a depending bracket 17 (Fig. 5), the same being suit-ably flanged forthe purposes of the rivetin and formed as a bearing for a short sha t 18whose reduced outwardly extending portion' has keyed to it a worm wheel19 and whose inwardly extending portion projects through said bar 9 andhas pinned to or formed integrally with it a collar 18:L which isflanged and riveted to the angle bar 14. Obviously the turning of theWorm wheel will turn that angle bar. Now the horizontal flanges of thetwo angle bars are made with lines of perforaticns as most clearly shownin Fig. 6, so that bracket plates 20 may be bolted thereto at variouspositions and these bracket plates are also perforated for varyingengagement therewith of other bolts which are run through lie ears ofthe engine block, as shown in iig. 1.

In Fig. 5 these bolts are shown at 2l and spacing collars 22 are shownbetween the bracket plates 2O and the ears 23 of the engine block 24.'In the illustratiomshown there are four points of suspensionof theengine block and it will be obvious that when the same is bolted totlicbracket plates 2() and the latter are bolted to the angle bars thesetwo bars are rigidly connected together so that the turning of the oneto which the worm wheel 19 is connected will necessarily turn the otheralong with the engine block itself. The angle bar on the far side of thestand has riveted to its central portion a collar 25 similar to theaforesaid collar 20 and lUU incassa pinned to or integral with a shortshaft 26 which extends through the adjacent side bar 9 and a bearingpiece 27 which is riveted to that side bar, said shalt being confined inplace by a nut 28 screwed upon its threaded outer end with a washerinterposed between it and the bearing iece 27.

rThe turning ot t e holder on its pivot is done by operating a crankhandle 29 (Figs. 1 and 3) on a worm 29a which is in mesh with the wormwheel 19-and journaled in a split bearing 29". F or purposes ofadjustment to ensure the proper meshing ot the worm and the worm wheelthe holes in this bearing which receive the bolt 29c for securing thebearing to the bracket 17, are slightly elongated and said bracket ismade with a pair of lateral lugs 19b through which set screws 19 workagainst the under side of the bearing.

-lt will be understood that the worm gearingitself serves to retain theholder at different positions to which it may be turned, lor althoughthe worm when turned will rotate the worm wheel and so turn the holder,any tendency oi the holder to turn of its own accord will be eectuallyresisted by the worm.

lt will be understood that engine blocks and engine assemblies can bevariously accommodated in the holder. The angle bars 1d may be reversedas indicated by dotted lines in Fig. ll, to meet certain conditions as,:lor example, when a moreor less completely assembled engine unit is tobe carried by the Work stand at a lowered position therein andright-side-up as contrasted with the inverted position of the engineblock for the burning-in process shown in Fig. 1. @ther Imeans ofattachment may be employed than the plate 20. ln some instances the workmay rest directly upon the horizontal flanges of the angle bars. Thenthere may be three point suspension instead of four point suspensionsuch as illustrated in the drawings, a cross bar being used to connectthe side angle bars at or near one end of the holder as indicated bydotted lines in lFig. 1. Some makes of engines are better adapted forsuch three point suspension than for a four point suspension.

For purposes of portability the work stand is mounted upon casters 30.These are journaled in hangers or brackets 31 having Shanks 82 whichextend up into housings 33 bolted to projecting end portions of the basechannel bars 2. Screws 34 are put through tapped openings in the tops ofthese housings and bear upon the upper ends of the Shanks of the casterbrackets, as best illustrated in Fig. 8, and these screws are formedwith crank handles 34"-. The purpose of this arrangement is to providefor the lowering of the work stand when it has been brought over thepermanent base structure presently to be described, upon which structureit will with that intermediate gear.

rest and to which structure it will be securely clamped when burning-in,running-in or i limbering operations are to be performed.

lThe base structure just referred to coniprises a pair of l-beams whichare laid upon the lloor (ordinarily concrete) and anchored thereto bylag screws or other suitable means. The lll-beams are connected togetherby tie-rods al and may be likened to a pair ot rails over which the workstand is run when it is te be put into operative relationship with thepower stand, presently to be described. For the purpose of securelyanchoring the work stand to this permanent base structure l employ anumber of specially constructed clamps engaged with the top ilanges ofthe l--beams and with the toot anges of certain ot the Z-bars 3. lF oursuch clamps are .here shown located at the tour corners ot the base ofthe work stand. A description of one will vsuilice for all. lit has acentral yoke-shaped portion d2 whose branches take the form of hooksthat engage under the flanges of the l-beam as best shown in ig. 4t,suihcient lateral clearance being allowed to provide t'or application ofthe clamp to the rail or ll-bea1n at the desired location by sidewiseand up-and-down movement without t-he necessity of going to the end ofthe rail and sliding 'the clamp over it. A ribbed projecting portion 42aof the clamp bears upon the top of the l-beam and an opposite projectingportion 2b takes the form of a tapped boss which receivesa set screw 13(F ig. 3). rlhe clamp will be positioned so that the boss 421? willoverhang the foot flange of the Z-bar 3, so that by turning the setscrew 48 down upon that flange a rocking effect will be produced uponthe clamp which results in its taking a powerful grip upon the l-beamwhile at the same time strongly clamping the base of thework stand. llltwill be obvious that clamps of this' sort applied at the four corners ofthe work stand will anchor it most rigidly 'to the permanent basestructure.

The power stand comprises a base 50 per-v manently set at one end of thepermanent rail structure, and a head 51 in which are journaled two driveshafts 52 and 53, one above the other. Uponthe lower shaft there is agear 54 which meshes with an inten mediate gear 55, and on the uppershaft there is a much larger gear 56 which meshes There is a. pulley 57on the lower shaft to receive power from any available source and aclutch is employed to connect the pulley with the shaft, being worked bya handle 58, and there is a hand wheel 59 for manually turning the shaft(for particulars in this regard reference may be had to Patent 1,332,678issued March 2, 1920, to Service Station Equipment Company assignee oflll@ H. E. Patrick et al.). The gearing abovedescribed provides forrunning the upper shaft at considerably lower sieed than the lowershaft. This upper shaft will be used when any operation is to beperformed requiring relativel slow turning of the engine crank sha t,such as the burning-in operation. When other operations are to beperformed which involve more rapid turnin of the crank shaft, such asthe ylimbering of a complete engine assembly,

then the lower directly driven shaft 52 will be used. Each ofthe shaftshas a projecting end adapted to have rotatively engaged therewith adetachable coupling 60, the one here shown being that commercially knownas the Karge universal coupling which automatically compensates for anyslight misalignment of drive shaft and crank shaft. As an improvement ofmy own I mount upon one melnber of this coupling a `chuckhead -or block61 which is made with an under-cut diametrical slideway receiving slidepieces 62. These carry projecting pins 63 for en agement with holes inthe flange on the en of the engine crank shaft. These flanges and theirbolt holes vary in different engines and make provision for anadjustment to take care of this. The slide. pieces 62 are cut withscrew-threads and a right and left-hand screw 64 is engaged therewithand journalled in the chuck head or block 6l. By turning this,y screwthe pins 63 can be brought to thc proper position for engaging boltholes in the flange of the crank shaft. The slide pieces are madeV-shaped at their inner ends so as to constitute jams to receive andclamp the shank of one member of a universal joint such as commonly usedin machines of this general character for making a connection with atransmission shaft when performing a limbering operation.

l claim:

1. The combination of a power head, an extended base structure in fixedrelation thereto; a portable stand comprising a base, uprights, and awork holder; and means for rigidly relating the said stand to .the saidbase structure fol-its support thereby and its anchorage thereto; theaforesaid power head having a drive shaft and the aforesaid work holderbeing adapted to receive and securely hold a motor; with-provisions foraligning the shaft of the motor with the said drive shaft andoperatively connecting it therewith.

2. The combination of ay power head; base rails in fixed relationthereto; a portable stand comprising base, uprights and work-holder;and. means for rigidly relating the stand to the said 'base rails forits support thereby and its anchorage thereto; the aforesaid power headhaving. a. drive. shaft and the aforesaid work-holder being adapted toreceive and securel hold a motor;,with provisions -for aligning theshaft of the motor with the said drive shaft and operatively connectingit therewith.

2l. The combination of a power head; an extended base structure in fixedrelation thereto; a portable stand wmprisin r a base, uprights, and apiv'oted work holer; and means for rigidly relating the said stand tothe said base structure for its support thereby and its ancho-ragethereto, the aforesaid stand having means for turning and setting thework holder at various positions with provisions for maintaining it in ahorin zontal position and for vertically adj ustin `it when sopositioned, and the aforesai power stand having a drive shaft withprovisions for making operative connection between the same and a shaftof a motor earried lry the holder of the Work-stand.

4. he combination of a power head; base rails in fixed relation thereto;a Work stand on casters with means for ralsing and lowering it, saidstand comprising a base to rest upon the rails when lowered, and columnsor'uprights and a holder; and removable clamps engaging the rails andthe base of the work stand with the latter positioned to hold such anobject as an engine block up to the power head the latter having a driveshaft with provisions for coupling it to the engine shaft.

The combination of a power h`ead;`base rails in the form of I-beams infixed relation thereto; a work stand on casters with means for raisingand lowering it, said stand comprising a base to rest upon the railswhen lowered, and columns or uprights and a holder; and removable clampsof yoke form adapted to hook under the top flanges of the Ibeams andhaving portions bearing on the tops of the latter. and bosses tooverhang parts of the base of the work-stand with set-screws in saidbosses.

6. The combination of a power head; an extended permanent base structurein fixed relation thereto; a portable work stand comprising base membersadapted to rest upon said permanent base structure, columns erected onsaid base members, ad'usting screws extending vertically along tie col-4umns, nut slides on said screws, side bars secured to the nut slides,and a Work holder .between said side bars; and means for clamping thebase members of the work stand to the permanent base structure; thepower head having a drive shaft with provisions for coupling it to theshaft of an engine in the holder of the work standf 7. The combinationof a power head, a base structure, and a Work stand adapted to hold anengine block; the power head having a drive shaft with a coup-ler piececarrying slides equipped with pins to engage holes in the ange of theengine shaft, and also leo carrying means for adjusting the slidestowards and from each other.

8. The combination of a.' power head, a

base struc-ture, and a work stand adapted to 5 hold an engine block; thepower head having a drive shaft with a coupler piece carrying slidesequipped with pins to engage holes in the flange of the engine shaft,and also carrying means for adjusting the slides towards and from eachother, and said 10 slidesbe-ing formed as chuck-jaws at their inner endsfor such purpose as described.

MORRIS H. FULLER.

